Our mission is to help individuals break free from anxiety and stress by transforming the way they breathe, think, and respond to fear and uncertainty. By teaching nervous system regulation as a hard skill- through evidence-based breathwork, nervous system training, and guided cold exposure- we empower our clients with fast-acting tools to create lasting change. Whether you’re an overworked professional, an athlete pushing your limits, or someone who has tried everything and still feels stuck, we offer a structured, research-driven approach to nervous system mastery.
Our Mission
Ice bath events are more than a practice—they are powerful gatherings where individuals face discomfort, find support, and push through their limits together.
A Transformative Community Experience
We uniquely combine breathwork, cognitive reframing, and controlled stress exposure (ice baths) to help clients not just manage anxiety but rewire their response to it.
A Holistic & Integrative Approach
Clients track progress through the Breathing IQ and Parasympathetic Recovery Score, quantifying their nervous system improvements over time.
Actionable & Measurable Results
Our methods are backed by published studies, ensuring that every technique we teach has proven benefits.
Rooted in Research
We focus on baseline breathing mechanics, teaching clients how to breathe efficiently for long-term stress resilience.
Boston’s Only Breathwork Coaching Specializing in Nervous System Regulation
What Makes Us Different?
Through Ice Bath Boston & Breath, Rachel brings a research-backed, hands-on approach to nervous system regulation, offering one-on-one coaching, corporate wellness, and retreats. She is co-author of two peer-reviewed studies on breathwork and cold water immersion, and holds a pending patent for the Downshift Score, a cold water emergent technology that quantifies autonomic nervous system downregulation. Her mission is to equip individuals of all ages with sustainable, science-backed tools to learn to cope adaptively and enhance their health and happiness.
Her personal breakthrough came after years of searching for relief from anxiety and depression, which were triggered by a major trauma just six days after graduating high school. After a decade of prescriptions, therapy, and medical interventions, Rachel found profound healing in cold water immersion, and learned firsthand that adaptive coping requires a full range of tools, not a single fix. This experience ignited her passion for sharing the power of breathwork and cold exposure with others.
Rachel’s journey has been marked by resilience and a relentless pursuit of evidence-based preventative health tools. After a career in education, she transitioned into the fitness industry, founding her first company, YOU Wellness, to empower women to take up space through strength training and intuitive nutrition.
About Our Founder, Rachel Lee
Rachel is a National Academy of Sports Medicine Certified Personal Trainer and Precision Nutrition Coach. She has specialized in women’s health for years. Her background in exercise physiology and nutrition allows her to guide clients in optimizing their breathing, movement, and eating habits for better nervous system regulation
Certified Personal Trainer, Nutrition & Women’s Health Coach
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Rachel became a certified ice bath coach with the ICCE Method in 2022. She trained under Dr. Belisa Vranich of The Breathing Class. She is a Trauma-Informed Care Practitioner and a member of both the Global Professional Breathwork Alliance and the International Breathwork Foundation
Certified Breathwork & Ice Bath Coach
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PhyziX goes beyond symptom relief of traditional physical to address the root cause of chronic pain. Their whole-body approach supports long-term healing—so you can move, live, and feel better.
Located Within PhyziX – Holistic Physiotherapy in Needham
Join us in this journey of resilience, strength, and self-regulation.
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Ice bath experiences are some of the most powerful community gatherings. When you step into the cold, you’re doing something hard, vulnerable, and transformative—surrounded by people cheering you on, reminding you that you are capable of more than you think.

